From 4452bfb942d06d76e5fc317b50b99872ec086059 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Fernando=20Tarl=C3=A1=20Cardoso=20Lemos?=
 <fernandotcl@gmail.com>
Date: Sat, 26 May 2012 21:45:15 -0300
Subject: [PATCH] Prevent moving out of fullscreen containers.

---
 src/move.c                         |  6 ++++++
 testcases/t/156-fullscreen-focus.t | 23 ++++++++++++++++++++++-
 2 files changed, 28 insertions(+), 1 deletion(-)

diff --git a/src/move.c b/src/move.c
index d3065c24..d110312a 100644
--- a/src/move.c
+++ b/src/move.c
@@ -169,6 +169,12 @@ void tree_move(int direction) {
     while (above->parent != same_orientation)
         above = above->parent;
 
+    /* Enforce the fullscreen focus restrictions. */
+    if (!con_fullscreen_permits_focusing(above->parent)) {
+        LOG("Cannot move out of fullscreen container\n");
+        return;
+    }
+
     DLOG("above = %p\n", above);
     Con *next;
     position_t position;
diff --git a/testcases/t/156-fullscreen-focus.t b/testcases/t/156-fullscreen-focus.t
index f76588f9..af205c45 100644
--- a/testcases/t/156-fullscreen-focus.t
+++ b/testcases/t/156-fullscreen-focus.t
@@ -111,7 +111,6 @@ $left = open_window;
 my $right1 = open_window;
 cmd 'split v';
 my $right2 = open_window;
-$nodes = get_ws_content($tmp);
 
 cmd 'focus parent';
 cmd 'fullscreen global';
@@ -234,4 +233,26 @@ is($x->input_focus, $right2->id, 'focus did not leave parent container (3)');
 cmd 'focus up';
 is($x->input_focus, $right22->id, 'focus did not leave parent container (4)');
 
+################################################################################
+# Ensure that moving in a direction doesn't violate the focus restrictions.
+################################################################################
+
+sub verify_move_prevented {
+    my $msg = shift;
+    my $nodes = get_ws_content($tmp2);
+    my $split = $nodes->[1];
+    my $fs = $split->{nodes}->[1];
+    is(scalar @{$fs->{nodes}}, 2, $msg);
+}
+
+cmd 'move left';
+verify_move_prevented('prevented move left');
+cmd 'move right';
+verify_move_prevented('prevented move right');
+cmd 'move down';
+verify_move_prevented('prevented move down');
+cmd 'move up';
+cmd 'move up';
+verify_move_prevented('prevented move up');
+
 done_testing;